Harmony is key to everything

So, what is it all about?

Dutch artist Jeroen Henneman stated in an article I read yesterday that the essence of visual art is that the maker gets in harmony with his own thoughts.
Is it that simple?!? Harmony is key to everything I would say but somehow I can totally relate to it:
writing and painting help me to streamline my thoughts and transform them into something like a pleasant conversation with myself. That is what harmony means to me.